Your prepaid SIM card credit need to be purchased at www.kimchimobile.com
(1) Visit the Kimchi Mobile Recharge Center (https://www.kimchimobile.com/product/prepaid-sim-credit-korea/)
(2) Choose how many credits or what monetary amount you would like to recharge your phone with and complete the checkout.
(3) After depositing the checkout amount to the Kimchi Mobile Paypal account, you will receive a recharge completion e-mail that includes the recharge code to input into your phone.
[How to recharge prepaid SIM credit]
(1) Insert Prepaid phone number to be charged then press the button on the right side. (Send Authentification Number)
(2) Check your cell phone and Enter the digits of authentification number
(3) Insert Prepaid recharge code(11 digits) then press the button for recharging
(4) Click the red button to recharge
(5) Press #114 then press the call button or check your increased balance online (https://www.sk7mobile.com/cust/pre/myService.do)
NOTE: Please make sure your cellular data setting will be turned off if you don’t want to use 3G (LTE) data using the credit.